Tire-stripping machine



Dec. 23, i924. LSZS E. gD. PUTT TIRE STRIPPING MACHINE Filed Ma 12, 1922 5 Sheets-Sheet `3.

@Hoznml E. D. FUTT TIRE STRIPPING MACHINE Filed May l2, 1922 3 Sheets-Sheet 2 EdWmfdaPf/f WQEW 61H02 ne@ ec. 23, i924. I Lsmrs v ET D. PUT-r TIRE STRIPPING MACHINE',

Filed May-.1.2, i922 s sheets-sheet s Para ivf,

Patented illes,

EDWARD D. PUTT, F AKRON, OHIO, AESEGNR 'IO THE FIRESTNE TRE AND RUBBER COMPANY, Si?? KRN, 43H10, il. ,COBERALGN Gli OH'I.

TIRESTR/IPNG EIIACHHIE .application lll/3d. Hay i2, 152.52. Serial 'o. i.

To all? whom t may concern:

Be it known that l, EDWARD l). Puri', a citizen of the United States, residing at y Akron, in the county of Summit, State of Ohio, have invented certain new and useful Improvements in Tire-Stripping Machines, of which the following is specification.

My invention relates to improvementsi in tire stripping machines for use in removing l@ pneumatic tire casings from the cores upon which. they have been either huilt or vnlcanized.

Broadly stated, the primary purpose of the invention is to provide an improved form of apparatus adapted for operation to remove a casing from a core While the core is being held in suspended position as, for instance, by means of the mechanism disclosed in the patent to 1illlilliam C. Stevens, No. 152111256, dated January 2, i917.

Specifically, the invention is directed toward providing improven'ients in the devices of the aforesaid patent that engage the casing and the core to eiiect the stripping,` operation, one of the particular results sought7 in the present instance7 being to so direct the action of these devices that they are always positioned at the proper angle relative to the core to minimize the strain upon them and upon their mountings and their action in separatiner the casingriiirom the core is facilitated.

Other objects and advantages will presently appear an]` 'the nature of the invention will he more fully 'understood when thc following description is read in conjunction with the drawings accompanying and ormin a part of this specification.

n the drawings:

Figure 1 is a vertical transverse section illustrating the application of my invention, upon a preferred type oi" core strippingV and supporting mechanism;

Figure 2 is a front elevational view oi the mechanism shown in Figure l;

Figure 3 is a transverse sectional vieiv, illustrating on an enlarged scale, the startn ing position oi my improved strip'fi'iing elements relative to a core and easing; lif VFigure 4 is a view similar to Figure 3 illustrating an intermediate position or my improved stripping elements relative to a core and casing;

Figure is a front elevational view of so much of the devices as are shown in Figures 3 and d;

Figure 6 is a detail perspective View of one of the elements comprising my invention;

Figure 7 is a I 'ici'spective vieiv of another of the elements comprising my invention; and

Figure S is a perspective vievv of still another element oi the invention.

In the type oll machine with which my invention has heen illustrated, a core 1 is elevated and suspended in a verticalv position in iront or" a pair of normally vertical guide arms 2 that are pivotally mounted Yl'or movement to swing their outer ends `in opposite directions circumferentialy ol the core l. Each arm Q is equipped with a slide 3 which is adapted to he reciprocated relative to its arm to move it vertically and then swing Iby its arm eircumferential1;Y of the core.

The mechanism for elevating' the core, moving the arms 2, and reciprocating the slides 3 'forms per se, no part of the present invention and will, therefore7 not be: described in detail herein. lrieiy described` it comprises tivo parallel cross shafts 4C and i1 the latter of which continuously driven from a motor 6 by a train comprising gears 7, 8. 9 and 10. pair of one revolution clutches ll and l2 are mounted. upon the shalt 5 in relatively spaced relation which are adapted tor operation to clutch and release the shaft by means oit a cont-rol mechanism designated generally by the numeral 13. @ne of the clutches, preferably l1, has fixed thereto a gear pinion 14 which meshes with a pinion 15 ixeol upon a sleeve 16. The sleeve lo is rotatably mounted upon the shaft 4C and carries a cam 17. Cam l? engages aroller 18 upon the rear end of a hell crank lever 18, that .is pivotally mounted for movement in a vertical plane, and serves to rock the lever 18 upon its pivot i9. The core l is positioned upon the 'forward end of this hell cranlr lever 18 and is raised thereby tc a 'proper position in front of the.

second y' cam 17. At its forward end ,the lever 204V actuates a cross head 22'Whjichis connected Aby means of pitmen 23 to each of said latter operation is effected in the following manner: Clutch 12 carries a gear pinion 24 in mesh with a gear pinion 25 that, in turn, is xed upon the shaft 5. Sh'aft 5, at each A end thereof is equipped 'with a beveled gear4 26 which mesh respectively with corresponding gears 27. Gears 27 are fixed respectivelyupon short shafts 28 which are Vjournaled for rotation about individual' aXis at right angles to the axis of rotation of shaft 5. As

' shown in Figure 2, the arrangement of shafts 28 is such that the arms l2 are between v them and their axis are be-low the horizontal diameter of the core 1.I A crank arm 29 and ',a. link 30 serves to connectl each shaft'm28 .to one of the arms 2 in such manner that-jwhen the shaftsI 28 are rotated the arms are swung in opposite directions about their respective pivots 31 from a vertical position to substantiall a horizontal one. n T e slides 3 are equipped with 'my improved stripping devices which will now be described, in detail.

Each slide 3f is provided atits upper end -with an outstanding` lug 32, upon which is mounted a balanced two part roller mounting that is suspended for oscillating movenient, asa "unit, relative to'its slide 3 and the core 1. Each mounting preferably co1nprises a vdepending; arm 33, that is bifurcated at its upper end. as at 34, and pivotally mounted upon a pintle '35 which.l passes through its bifurcated portion 34 and its associated lug 32. The lower end ofeach arm y 1331's 'also preferably bifurcated as at 35 and extends forwardly of the arm at a right angle thereto to provide an offset support for an arm 40, presently described. Between its bifurcated portions 34and 35, each arm 33 is chambered, as at 37, to-receive a headed 'pin 38' that is normally pressed toward the core by a compression spring- 39. Upon the portion 35 of each arm 33 a normally upvstanding arm 40 is pivotally mounted for swinging movement thereon, in a vertical plane, and toward and away from the core 1. A sultable coil spring 41 is arranged about the pivot, designated 42, of the arm 40, whereby said arm is held in yielding engagement with the 'spring pressed pin 38 of its arm 33. Upon the upper `end of each arm 40, a flanged roller 43 is mountedto rotaie freelyV about a spindle 44 that projects for-` wardly of its arm A'toward the core 1r' These rollers each include a front fiange45 and a rearrflanofe 46 for a purpose presently apparent, tPreferably the spindle'44fofeach arm 40 is inclined downwardlyand later'.A ally and the relative angle of inclination of the spindles is'I such that. they converge at p their free ends as best shown 1n Figure 2 of` the drawings.A The rollers 43 ,are designed topass transverselyover the fa'c'eof the core 1 on the up stroke of the reciprocable *slides 3, the front flange 45 of each roller prying.

the casing loose from the core. By virtue of therelative inclination of the spindles previously described, the forward faces of each ,iange 45 are-presented against the core-sur-v face at such a tangent thereto that thispryy ,ing 'or separating action is facilitated.. At this pointv yit should be noted that the -relative arrangement and-'construction of the] springs 39 and 41 are such that the arms 33?A and 34 are held in yieldingbalanced. rela-5".v

tion to permit the rollers 43 to` wipe over. the

casing and cor'eton the down stroke ofthe slides 3. i'

Upon each arm2 a cam plate 47'5is mounted as best shown in Figures 2 and 5y t'on 49. Upon the lower end of eacharm 33' of thehdrawings. "Each cam plate 47 has an; 'nclined end portion 48 and a straight por ,i z

a' 011er 50 is mounted in position to engage oneof the cam plates 47. The arrangement 'y of thefplates 47'is such, that as the slides are'fI-'f loweredsand the rollers 43 wipe past the core, each arm 33 has its lowerend' swungf outwardly` toward the core, sol that at the beginning of theup stroke of the slides3, the rollers'43 arel presented against the'ore' in substantially the position shown in Figure 3f of the drawings. That is to say, in a pos .tion for the'forward ,flanges 45- of the rollers to take' underf'thevbeiid of Aa *casing andthe-7l tween it andv'the core, and the direction''of thrust of the roller is aty an obtuse angle lt the surface of the core. The obtuse angle".

maintained until the rollers havepassedtlie'.

horizontal diameter ofthe'core annulus and i .a minimum strain is thus imposedupon the mounting and its pivotal connections. As

the rollers'43 reach substantially the hori the casingr on the rollers 43 and the rollers K 50 areadjusted tomaintaintheir angular positionrelative to the transverse curvature of the core'as the arms 33 and 40 swing about the pivot pintle 35 toward the ,slides 3.

The cam late s 47v are so disposed and con-r structed t at this. latter'adjustment ofthe rollers 43 continuesuntilsaid r'ollers round ne l: of 'the core. n@ vemen, lie rolleru nre u r entielly of lie core ley elle viously described.

The coil spring lll und iiie pin ilu nerve to keep the roller in proper posir'ion to engage "he tire eneinff.

itliougn il lieve described my invenlion in @lere-ii end necessarily uilized eernin spe 50 cie iengunge herein, it is ro lie understood inet the presen?, disclosure is illustrative und is not izo loe construed es liniiiing the scope or snirit of the invention unless suoli limiuitiene ere expressly iii-:limited in the '-lziiins appended hereto.

.. Apparatus for Woning 'rire rusings from cores eoi'npr' g in eoiulzineion, ineens for suppornng e core und easing "lll thereon, end mee or upinn' ilu? easing' from the eoie.Il seid f iufpiug; wenns includ ino" o, reeiproee'bie glide, i roller;` end e. siiifsnlole mounting roller mounted on seid slide.

l5 2, Apparatus for shipping lire cesiugs from cores comprising in eoxnliinnion, ineens for Supporting e core und casing hereon, and reeiproenloie ineens for siripl)ping rhecesing from the core embodying' roller adapted io 'rensverse the core, n movable mounting or iie roller adapted llo press the roller against the core, and means io maintain the mounting in one position at lle beginninn,y of the stripping notion and permit `temere during; the

stripping movementu 3, pperaus for striruining lire oesings Jfrom cores comprising in combination, ineens for supporting e core sind eusing 4H liereon, ineens for shipping tile eusing from 'alle Core conA rising' e, roller and a pivo'ed mounting 'leerefor and means fo Cause the inouniin. lo recede from the core at efprede'ermined poinl in fue stripping operation.

4i. Apparatus for sripping tire ensings 'from annuler eures: comprising in combinaion, means for supporting ille core und eusing thereon, e roller. menne; adapted io move the roller transversely of tlie core unnulus, a, mounting constructed io support the roller upon seid means in engagement with che core, and eem ineens for changing 'Clie position of the mountingns tlio roller is moved transversely or' the core.

Apparatus for stripping lire earnings from annuler cores comprising iu r-,oiul'iiuw tion, means for supporting u coro und unsl'liereon, n reeiproeable slide adapted G0 to move transversely of the corel1 uu oseillutable mounting' upon the slide. n roller upon the mounting ndupted to liansverso the core ennulus during reeiproezu'ion of the Slide.' and oem Ineens for oscillating elle mounting;l

CTD si:

l. ppnrul'us for srripping lire easing@ Afrom annuler roi-es comprising in rumliinzu ion, ineens '.l'or supporting- :i row und of ing; llureonn u vertically reeiproouiile slide nonp'led lo more transversely of the core uunulus, n rollerf und u mouniing adapted to support: the roller upon tlie slide seid mounting' euilioilyiuu' relutivelv movable firms uoruuzily lielil in yielding angular posiliou 'with reaped', io efufli other.

T. .ppnrntus `for shipping tire easings Yl'rom unnulur cores comprising in Combinetion, u'unus for supporliup; u eore and casingthereon` n vertically reeiprooeble slide adapted to uiove transversely of the core anmilusE a rfiller, and ai mounting' for yield uliljy sumiorting alle roller on ilio slide eruliorllviuu rolnlively u'iovfililo :mus zuleplevl 'for swinging movement :is n unil; about u eun'unon ums.

ppzrnlius for Stripping lire ensings from annuler Coree; comprising in combina'- iou, ineens 'for supporting u core und easing' liereon, u vertically reeiproonlile slide udnpied ro more runsverselv of llie core unnulus, e roller, uuudjuelulule mounting ndaped 'no support the roller upon the slide mid mouniing einlmdyii'ig relatively niovable erms nr mally held in yielding angular position with respect to enoli other, und cum ineens for adjusting' the mountinfr.

9. ppziratus for stripping tire cusings from :inuuler cores: comprising in oomlvinw fion, ineens for supporting n core and eusing thereon, e vertically reoiproealole slide adapted to move tmnsvereeiy` of the Core nnnulus. roller, e mounting i'or yieldubly supporting tho relier on the slide embod7A ing relatively movable firms adapted for swinging nfioveinenl` :is :i unit about n, oomlnon exis, and menus for swinging the mounling; during` reoiprooation of lille slide.

l0. ppurutus for sli-inning ltire oasings from uuuulur cores Comprising in combinaliou menus for supporting u core und ons inf; liereon, e vertically reoiproeaole slide eduperl to move runsversely of the core niinulus, a depending" erm pivotally inouulied upon ille eline for swinging move- .Iuent llureon, :in upsi'ziruline; arm on said irst arm yielluloly hold in angular relation with respect tlierefu und n.. roller upon said lest arm adapted ro engage the Side of *also eore on llie up sf/roko of the slide,

1i. Apparatus for stripping tire easings from annular cores comprisingr in combinezion, menus ior supporting il core, n verti-y i-ullv reriprooulwle slide adapted to move l'rzuisverselv of the voro minulus, u dependiugi' uri'u pivotully mounted for swinging movernon'. ou ilie slide, n roller upon the zum, n eem pluie adepzed 'ro engage the roller to move lie erm envoy from ille slide, und u flanged roller yieldnliiy mounted upon the erm for engagemegnr with the core.

12. Apparatus for stripping tire casngs from annular cores Comprising in combing;- tion, means for supporting a, core-and casing thereon, a vertically reoiprocable sle 5 dnpted to movetransversely of th'cre annulus, a depending arm pivotally mounted upon the slide-for swinging move-y ment relative thereto, a. roller upon the arm, a cam Elate adapted to engage the roher to move t e arm awa from the slide, and a angedroller yiel ably mounted upon the armrfor 'engagement with the core and for movement in an arcuate path.

' .EDWARD D. PUTT. 

